Tiltable double-layered fabric blind

ABSTRACT

A tiltable double-layered fabric blind is provided, which includes a double-layered fabric, composed of transparent front and rear sheets and a plurality of opaque spacer veins, with a horizontal bar mounted to a lower end of the fabric, a rotator having a coupling pipe and a driving body mounted to one side of the coupling pipe, the coupling pipe being combined with the double-layered fabric, an angle regulator having a rotating pipe and a rotating body, the rotating pipe having a friction member, which makes one layer of the double-layered fabric brought into close contact with the circumference thereof, a connection plate having a protrusion, which is coupled through the rotator and the angle regulator, and control cords mounted on one side of the rotator and the angle regulator.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims all benefits of Korean Patent Application No.10-2009-116267 filed on Nov. 28, 2009 in the Korean IntellectualProperty Office, the disclosures of which are incorporated herein byreference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates, in general, to a blind capable of tiltingdouble-layered fabrics and, more particularly, to a tiltabledouble-layered fabric blind, wherein compared to a double-layered fabricblind of the prior art, in which only upon pulling down double-layeredfabrics to the end, the double-layered fabrics can be open, spacer veinsthat are connected between two layers of fabrics can be freely pivotedat a desired angle at a position where a user wants, so that thedouble-layered fabrics are controlled to be tiltable at any position,thereby improving the convenience of use.

Moreover, even though the length of the double-layered fabrics isdifferent from that of a window, the blind can be installed so that thedouble-layered fabrics can be opened and closed at any position,providing excellent adaptability and compatibility to various kinds ofwindows irrespective of the sizes thereof.

2. Description of the Related Art

Generally, a roller blind is configured such that the amounts ofincident sunlight and open view through a window are controlled by theextent that blind fabrics are wound around a winding rod, so that theroller blind has a problem in that when the blind fabrics are pulleddown to the end, the transmission of sunlight and open view through awindow are completely intercepted.

To solve this problem, as shown in FIGS. 1 and 2, there has beenproposed a roller blind using double-layered fabrics 4, wherein thedouble-layered fabrics 4 consist of front and rear net-woven sheets 1and 2 and a plurality of spacer veins 3 disposed between the front andrear sheets 1 and 2.

The spacer veins 3 each have a shape of a letter of substantially “S” insection and are horizontally connected between the front and rear sheets1 and 2 so as to separate the sheets at a distance.

The front and rear sheets 1 and 2 are composed of transparent net-wovenmaterial, and the spacer veins 3 of translucent material that is moreflexible than those of the front and rear sheets 1 and 2.

The double-layered fabrics 4 are configured such that external light isintroduced inside through the front and rear sheets 1 and 2 while thespacer veins 3 are stretched and assume a horizontal posture.

Further, as shown in FIG. 2, when one side of the front or rear sheet 1or 2 is lifted up, the stretched veins 3 become folded so that the frontand rear sheets 1 and 2 are substantially brought into contact with eachother and the spacer veins 3 are connected to each other, thereby cominginto the translucent state in which light is transmitted through thefront and rear sheets 1 and 2, but vision is blocked.

As shown in FIG. 3, there is provided a roller blind 9 that isfabricated using the double-layered fabrics 4.

The roller blind 9 includes an upper case 6 to which a winding rod 5 iscoupled, around which the double-layered fabrics 4 are wound, and alower weight bar 7 which is mounted to a lower end of the double-layeredfabrics.

The roller blind further includes a drive roller 8 which is mounted toone end of the winding rod 5 so as to move the double-layered fabrics upand down, and a control cord 8 a which rotates the drive roller 8.

In use, when the control cord 8 a is pulled down in an arrow direction,the drive roller 8 is rotated and thus the double-layered fabrics 4 arepulled down.

Here, the spacer veins 3, which have been provided between the front andrear sheets 1 and 2, are in a folded state as shown in FIG. 2, and whenthe double-layered fabrics are moved to the end, the veins 3 are thenunfolded and stretched by the weight of the lower weight bar 7.

That is, the conventional roller blind is operated such that only whenthe double-layered fabrics are pulled down to the end, plural veinsbecome stretched by the weight of the lower weight bar, thereby causinga problem in that there is no means that a user can stretch the foldedveins at a desired position, or any position where the fabrics arepulled down, and that can control an angle at which the veins arestretched.

Furthermore, since the double-layered fabrics wound around the driveroller should be pulled down to the end in order to open thedouble-layered fabrics, and the whole length of the roller blind shouldbe equal to the length of a window where the blind will be installed, aproduct should be fabricated by the size suitable for various kinds ofwindows, causing a problem of reduction in economical efficiency andcompatibility.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made keeping in mind theabove problems occurring in the related art, and the present inventionis intended to propose a tiltable double-layered fabrics blind n whichdouble-layered fabrics wound around a coupling pipe can be drawn upthrough a friction member (with friction coefficient) formed on a fullcircle of an angle regulator such that one side of the double-layeredfabrics is brought into close contact with the friction member at anytime and point, and is drawn up in a direction toward which a rotatingpipe rotates, thereby making spacer veins of the double-layered fabricsstretched at a desired angle at a desired position.

Another object is to provide a tiltable double-layered fabric blind inwhich an angle regulator is made thinner and smaller than a rotator sothat the blind can be mounted to a window with less mounting space.

In order to achieve the above objects, according to one aspect of thepresent invention, there is provided a tiltable double-layered fabricblind including: a double-layered fabric, composed of transparent frontand rear sheets and a plurality of opaque spacer veins having a letterof “S” in section, with a horizontal bar mounted to a lower end of thefabric; a rotator having a coupling pipe and a driving body mounted toone side of the coupling pipe, the coupling pipe being formed with acylindrical pipe and combined with the double-layered fabric in such amanner that the spacer veins of the double-layered fabric are stretchedin a horizontal posture and upper ends of the front and rear sheets arefixedly attached to opposite sides of the circumference of the couplingpipe; an angle regulator having a rotating pipe mounted behind therotator and a rotating body mounted to one side of the rotating pipe,the rotating pipe having a friction member, which makes one layer of thedouble-layered fabric brought into close contact with the circumferencethereof and draws up the one layer; a connection plate having aprotrusion, which is coupled to center holes of the rotator and theangle regulator; and control cords mounted on one side of the rotatorand the angle regulator.

According to the above construction of the present invention, thetiltable double-layered fabric blind has the following effects.

First, the spacer veins of the double-layered fabric can be freelystretched at a desired angle at any desired position without pullingdown the double-layered fabric to the end, having the effect ofproviding ease of use.

Second, the double-layered fabric blind can be adapted to various kindsof windows, providing excellent compatibility.

Third, the angle regulator is made thinner and smaller so that thetiltable double-layered fabric blind can be simply mounted withoutrestrictions.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the presentinvention will be more clearly understood from the following detaileddescription when taken in conjunction with the accompanying drawings, inwhich:

FIGS. 1 to 3 are cross-sectional views of a double-layered fabric blindaccording to the prior art;

FIG. 4 is a cross-sectional view of a tiltable double-layered fabricblind according to the present invention;

FIG. 5 is a cross-sectional view of the installed state of thedouble-layered fabric according to the present invention;

FIG. 6 is an exploded perspective view of the whole construction of adriving body according to the present invention;

FIG. 7 is a perspective view of the construction of a friction memberaccording to the present invention;

FIG. 8 is an exploded perspective view of the construction of a rotatingbody according to the present invention; and

FIGS. 9 to 11 are views of the used state of the tiltable double-layeredfabric blind according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in greater detail to a preferred embodimentof the invention, an example of which is illustrated in the accompanyingdrawings. Wherever possible, the same reference numerals will be usedthroughout the drawings and the description to refer to the same or likeparts.

FIG. 4 is a cross-sectional view of a tiltable double-layered fabricblind according to the present invention, FIG. 5 is a cross-sectionalview of the installed state of the double-layered fabric according tothe present invention, FIG. 6 is an exploded perspective view of thewhole construction of a driving body according to the present invention,FIG. 7 is a perspective view of the construction of a friction memberaccording to the present invention, FIG. 8 is an exploded perspectiveview of the construction of a rotating body according to the presentinvention, and FIGS. 9 to 11 are views of the used state of the tiltabledouble-layered fabric blind according to the present invention.

Reference numeral 200 denotes a main body of the tiltable double-layeredfabric blind according to the present invention.

The main body 200 includes a rotator 120 having a coupling pipe 121,around which a double-layered fabric 110 is wound, an angle regulator140 having a friction member 130, which allows one layer of thedouble-layered fabric 110 to be brought into close contact with thecircumference thereof and draws up the layer, a connection plate 197connecting the rotator 120 and the angle regulator 140, and controlcords 170 and 171 controlling a height and an angle, respectively, ofthe double-layered fabric 110.

The double-layered fabric 110 consists of net-type transparent front andrear sheets 111 and 112 and a plurality of spacer veins 113 disposedbetween the front and rear sheets 111 and 112 each having a shape of aletter of “S” in section.

A horizontal bar 114 is mounted on a lower end of the double-layeredfabric 110.

The rotator 120 consists of a coupling pipe 121, around which thedouble-layered fabric 110 is coupled, and a driving body 100 mounted toone side of the coupling pipe 121.

The coupling pipe 121 is formed with a cylindrical pipe and combinedwith the double-layered fabric in such a manner that as shown in FIG. 5,the spacer veins 113 of the double-layered fabric 110 are stretched in ahorizontal posture and an upper ends of the front and rear sheets 111and 112 are fixedly attached to opposite sides of the circumference ofthe coupling pipe.

In this way, the front sheet 111 of the double-layered fabric 110, whichis wound around the coupling pipe 121, is then mounted so as to comecloser to the circumference of a rotating pipe 141.

The driving body 100 adopts the operating principle of a ‘one cordblind’ disclosed in the Applicant's prior Korean Patent Registration No.875633, wherein the driving body includes a fixing plate 15 having ashaft 13 with a fixing hole 11 to which a leaf spring 19 is coupled.

There is further a gear body 50, which consists of an inner gear 20,small-diameter gears 30, and a fixing ring 40 to which a spring ismounted.

The gear body 50 is engaged with inside of a rotating gear 65, therotating gear being provided with internal and external gear teeth oninner and outer circumferences, and the rotating gear 65 is inserted andmounted into a coupling groove 61 of an operating plate 60, around whicha control cord 170 is coupled.

A cover plate 70 is fixedly mounted to the front side of the operatingplate 60 in order to prevent the gear body 50 and the control cord 170from being detached outside.

A carrier 80 is coupled into a hole 71 of the cover plate 70. Thecarrier couples and decouples the cover 90 while being screw-coupledwith a rotating section 93 of a cover 90.

The coupling pipe 121, around which the double-layered fabric 110 isattached, is inserted and mounted around the circumference of the cover90.

The operating body 100 is operated such that, when the control cord 170is pulled down, the operating plate 60 is rotated and the rotating gear65 is rotated in the same direction as the operating plate 60.

Then, the plurality of small-diameter gears 30 screwed inside therotating gear 65 is also rotated in the same direction so that the innergear 20, which has been engaged with the small-diameter gears 30, isrotated in the counter direction from the small-diameter gear 30.

Then the carrier 80, which has come into contact with a reinforcing step21 of the inner gear 20, is rotated so that a fixing step 41 of thefixing ring 40 is moved along an inclined surface 82 of the carrier 80so as to advance the carrier 80.

Here, an elastic spring 85 is compressed and a screw portion 81 of thecarrier 80 is engaged with a screw portion 91 of the rotating section93, which has been mounted inside the cover, so as to rotate the cover90, together with the coupling pipe 1212 mounted around the cover 90.

The angle regulator 140 includes the rotating pipe 141 formed with thefriction member 130, and the rotating body 150 arranged at one side ofthe rotating pipe 141.

The angle regulator 140 has the diameter ⅓ times the diameter of therotator 120, which is mounted before the angle regulator, and is mountedafter and below the rotator 120.

The rotating pipe 141 is provided with the friction member 130 (forpreventing slippage), which as shown in FIG. 7, comes into close contactwith one layer of the double-layered fabric 110 and draws up the fabricso that the spacer veins 113 of the double-layered fabric 110 arestretched and regulated at a certain angle.

The friction member 130 is configured such that the outer circumferenceof the rotating pipe 141 is directly applied or coated with siliconeliquid or rubber-like member, to which the front sheet 111 of thedouble-layered fabric 110 closely adheres.

The friction coefficient of the silicone liquid or rubber member, usedin the friction member 130, can be controlled according to the width ofthe double-layered fabric 110 and the length of fabric wound.

The friction member 130 is operated so that in the state of coming intoclose contact with the front sheet 111 of the double-layered fabric 110,if the rotating pipe 141 is rotated, the friction member draws up thefront sheet 111 without slippage.

When only the front sheet 111 of the double-layered fabric 110 is movedupwards as such, the folded veins 113 become stretched at a desiredangle.

Compared to the prior art, means for adhering one layer of thedouble-layered fabric 110 thereto and drawing up the same is a newlycontrived device, which facilitates folding and unfolding of thedouble-layered fabric 110 and easy angle-controlling.

Moreover, the double-layered fabric 110 can be freely stretched at anydesired position without the need for pulling-down of the fabric to theend.

The rotating body 150 is mounted on one side of the rotating pipe 141 inorder to rotate the rotating pipe 141.

When the rotator 120 installed before the rotating body 150 is rotatedand opens and closes the double-layered fabric 110, the rotating body150 is in a free rotating state, so that the rotating body does nothinder the rotation of the rotator 120, but is rotated in the samedirection as the rotator 120, thereby allowing smooth opening andclosing of the double-layered fabric 110.

The rotating body 150 includes a fixing body 156 having a fixing hole152 provided on one outer surface, to which a leaf spring 151 is fixedlymounted, a center fixing protrusion shaft 153 and a guide plate 155, inwhich a control cord outlet hole 154 is formed thereon.

Here, a spring 158 having an engaging step 158 a is mounted on the outercircumference of a leading end of the fixing protrusion shaft 153.

The spring 158 is coupled into a coupling groove 184 of a carrier 180such that the engaging step 158 a comes into close contact with one sideof the coupling groove 184, thereby preventing the carrier 180 fromfreely rotating.

An operating plate 160 is inserted into and mounted inside the guideplate 155 of the fixing body 156, wherein the control cord 170 is woundaround the outer circumference of the operating plate, and a fasteningportion 159, reinforcing steps 159 a of which are symmetrically formedon an inner circumference thereof, is integrally formed on a frontsurface of the operating plate.

Here, the control cord 170 passes through the outlet hole 1554 to theoutside.

A fixing ring 163 that has opposite fixing steps 161 with cut recesses161 a, respectively, is coupled around the outer circumference of thefastening portion 159, an engaging step 162 a of a spring 162 beingfitted into the cut recess 161 a of the fixing ring 163.

A circular cover plate 165 with a center hole 164 is fixedly installedon the front surface of the operating plate 160.

Into the center hole 164 of the cover plate 165, the carrier 180 isinserted, which has a center insertion hole 181, through which thefixing protrusion shaft 153 is inserted, a gear 182 provided on thefront surface, and a coupling groove 184 provided on the rear surfacewith an inclined surface 183 formed on one side.

Here, the engaging step 161 of the fixing ring 163 is in contact withthe coupling groove 184 of the carrier 180.

The gear 182 formed on the front surface of the carrier 180 is engagedwith a cover 190, in which a compression spring 195 is mounted into aninsertion hole 191 and a gear 192 is formed on the frontal innercircumference, so that the carrier is rotated in the same direction asthe cover.

On the cover 195, the rotating pipe 141 having the friction member 130is installed.

In operation of the rotating body 150, when the control cord 170 that isattached to the operating plate 160 is held and pulled down, thefastening portion 159 of the operating plate 160 is thus rotated.

The spring 158 that is installed in the coupling groove 184 of thecarrier 180 resiliently urges the carrier 180 to advance withoutrotating.

Here, the fixing steps 161 of the fixing ring 163 is moved upwards alongthe inclined surface 183 of the carrier 180 and moves the carrierforwards.

Then, the compression spring 195 is compressed and the gear 182 formedon the front side of the carrier 180 is engaged with the gear 192 of thecover 190 so that the cover 190 is rotated.

Contrary to this, if the gear 182 of the carrier 180 becomes separatedfrom the gear 192 of the cover 190, the cover 190 becomes an initialstate, i.e. a free-rotation state.

The initial state is maintained when the rotator 120 on the front sideis rotated, so that it does not influence the opening and closingoperation of the double-layered fabric 110.

The rotator 120 and the angle regulator 140 are connected each other bya connection plate 197.

The connection plate 197 is made of metal and provided on opposite sideswith coupling protrusions 196, each being fitted into the center holesof the rotator 120 and the angle regulator 140.

The control cords 170 and 171 are provided in the operating plate 60 ofthe driving body 100 and the operating plate 160 of the rotating body150, respectively, and have holding rings 172 and 173 on the lowerportion thereof.

If necessary, separate wires are tied to the respective holding rings172 and 173 of the control cords 170 and 171, so that they can be usedas a grip.

The operation of the present invention will now be explained withreference to the accompanying drawings.

As shown in FIGS. 9 and 11, when the control cord 170 provided in therotator 120 is pulled down, the rotator 120, around which thedouble-layered fabric 110 is wound, is rotated in an arrow direction.

Then, the angle regulator 140 before the rotator is also rotated in thesame direction, so that the double-layered fabric 110 is moved down.

Here, the double-layered fabric 110 is kept in a state of the veins 113between the front sheet 111 and the rear sheet 112 being folded.

Then, if the double-layered fabric 110 is pulled down to a user'sdesired position and the user wants external light transmitted inside atthat position, the user pulls down the control cord 171 provided in theoperating plate 160 of the rotating body 150.

Then, when the fastening portion 159 of the operating plate 160 isrotated and the spring 158, which is mounted in the coupling groove 184of the carrier 180, urges the carrier 180 to advance without rotating,the carrier 180 is moved forwards while the fixing step 161 of thefixing ring 163 is moved up along the inclined surface 183 of thecarrier 180.

Here, the gear 182 of the carrier 180 and the gear 192 of the cover 190are engaged with each other with elasticity of the compression spring195, so as to rotate the rotating pipe 141.

Then friction member 130 that is formed on the whole outer surface ofthe rotating pipe 141 allows the front sheet 111 of the double-layeredfabric 110 to come closer to the friction member so that the frictionmember enables the fabric to be drawn up in the same direction as therotation of the rotating pipe 141 without slippage.

Here, while the front sheet 111 is drawn up, the veins 113, which havebeen folded between the front sheet 111 and the rear sheet 112, becomestretched, so that external light is transmitted inside through both thefront sheet 111 and the rear sheet 112, which are transparent.

Further, the front sheet 111 adhered to the friction member 130 is drawnup in a folded state.

As such, a user can easily regulate an angle of the double-layeredfabric 110 at any position while rotating the angle regulator 140.

In this state, if the control cord 171 is pulled down again and thenreleased, the compression spring 195 is released and the carrier 180,which has been advanced, returns to its initial position while beingdisengaged from the gear 192 of the cover 190, thereby being in afree-rotation state.

Although a preferred embodiment of the present invention has beendescribed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims.

1. An tiltable double-layered fabric blind comprising: a double-layeredfabric, composed of transparent front and rear sheets and a plurality ofopaque spacer veins having a letter of “S” in section, with a horizontalbar mounted to a lower end of the fabric; a rotator having a couplingpipe and a driving body mounted to one side of the coupling pipe, thecoupling pipe being formed with a cylindrical pipe and combined with thedouble-layered fabric in such a manner that the spacer veins of thedouble-layered fabric are stretched in a horizontal posture and upperends of the front and rear sheets are fixedly attached to opposite sidesof the circumference of the coupling pipe; an angle regulator having arotating pipe mounted behind the rotator and a rotating body mounted toone side of the rotating pipe, the rotating pipe having a frictionmember, which makes one layer of the double-layered fabric brought intoclose contact with the circumference thereof and draws up the one layer;a connection plate having a protrusion, which is coupled to center holesof the rotator and the angle regulator; and control cords mounted on oneside of the rotator and the angle regulator.
 2. The tiltabledouble-layered fabric blind according to claim 1, wherein the frictionmember is configured such that the outer circumference of the rotatingpipe is directly applied or coated with silicone liquid or rubber-likemember, to which one layer of the double-layered fabric closely adheresso that the layer is drawn up without slippage.
 3. The tiltabledouble-layered fabric blind according to claim 1, wherein the rotatingbody comprising: a fixing body having a fixing hole provided on oneouter surface, to which a leaf spring is fixedly mounted, a centerfixing protrusion shaft, to which a spring is mounted in a leading side,and a guide plate, in which a control cord outlet hole is formedthereon; an operating plate mounted inside the guide plate of the fixingbody, wherein the control cord is wound around the outer circumferenceof the operating plate, and a fastening portion, reinforcing steps ofwhich are symmetrically formed on an inner circumference thereof, isintegrally formed on a front surface of the operating plate; a fixingring inserted into the fastening portion and having opposite fixingsteps with cut recesses; a spring having an engaging step, which isfitted into the cut recess of the fixing ring; a cover plate 165installed on the front surface of the operating plate and having acenter hole; a carrier inserted into the center hole of the cover plateand mounted in a manner as to come into contact with the reinforcingstep of the fastening portion and having a center insertion hole,through which the fixing protrusion shaft is inserted, a gear providedon the front surface, and a coupling groove provided on the rear surfacewith an inclined surface formed on one side; and a cover engaged withthe gear of the carrier and having a center insertion hole and a gearformed on the rear surface thereof.